Washing-machine.



F. W. SAUER.

WASHNG MACHlNE.

APPLICATION FILED uzczs. me.

Patented Nov. 20, 1917.

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' ATTORNEY ra n rarer WASHING-MACHINE.

Application filed December 28, 1916.

To all whom it may concern:

Be it known that I, FREDERICK W. SAUER, a citizen of the United States, residing in the borough of Brooklyn, city of New York, county of Kings, and State of New York, have invented new and useful Improvements in l VashingMachines, of which, the following is a specification.

The invention is an improvement in that type of washing machine wherein the clothes are placed within a horizontal perforated cylinder which is rotated within a tub. Such cylinders have been provided with a suitable number of inward projecting baffles, these baflies being for the purpose of agitation. I have discovered that, by making one or more of these baflies sufficiently long, and solid, and by omitting perforations in the adjoining portions of the cylinder wall for a substantial distance, an effect is produced as the cylinder rotates similar to that of the familiar reciprocating suction cups or dollies, whereby the efficiency of the machine is remarkably increased. Other features of the invention relate to the man nor of constructing the bafiies and their union with the cylinder heads and certain details in connection with the door construction and mounting.

In the accompanying drawings:

Figure 1 is a side elevation of the cylinder;

Fig. 2 is a vertical cross-section on the line 22 of Fig. 1;

Fig. 3 is a fragmentary end elevation;

Fig. 1 is a section on the line 41-4 of Fig. 3; and

Fig. 5 is a fragmentary side elevation showing a portion of the door.

The tub wherein the cylinder 2 is placed and the means for rotating the same first in one direction and then in the other are not illustrated. The circumferential wall 3 of the cylinder is formed of a perforated sheet curved upon itself and with its ends suitably united. A suitable number of baffles 4, 5 and 6 are formed upon the interior of the cylinder by doubling the wall 3 inward at intervals. In this way two-thickness baffies are formed the layers of which are continuous with the adjoining portions of the wall of the drum.

Heads 7 are united to the ends of the cylindrical body and are provided with slots in line with the baffles. The ends of the latter are out to form tongues 8, which pass through these slots and are bent in oppo- Specification of Letters Patent.

Patented Nov. 2c, 1917. Serial No. 139,263. 7

site directions outside the cylinder heads, as

shown in Fig. 4. In this way a very simple and stron construction is obtained.

The bafies 5 and 6 are represented as being of ordinary length (measured inward from the wall of the drum), while the baffie at is of substantially greater length, preferably in the neighborhood of three inches. Adjacent thereto the portions 9 of the circumferential wall are solid throughout the length of the cylinder and for a considerable distance circumferentially, the width of these solid wall portions being preferably approximately equal to the radial length of the baffle. With this construction a suction pocket is formed at the rear side of the long baffle, which causes the water to be forced through the clothes by air pressure. As shown, there are two of these pockets 10, since the cylinderis designed to rotate in opposite directions. For cylinders of comparatively small diameter there is preferably only one of these long bafl'les, in order to avoid unduly obstructing the interior. It will be understood that with cylinders of larger size all of the baffles may be of the. greater length.

A door opening 11 in the circumferential wall is closed during operation by a door 12, consisting of a curved and perforated sheet overlapping the edges of the opening at the outside. One of the longitudinal margins of this door is depressed, as shown at 13, and cut away at the ends, leaving bearing shoulders 14. The marginal lip, thus reduced in length, is inserted through the door opening, so as to underlie the cylinder wall when the door is closed. The edge of the door opening is provided with an inwardly projecting bead 15, beneath which the marginal lip passes, and behind which it engages by virtue of a similar, but outwardly projecting bead 16 formed upon its own edge. The door is thus locked against movement in the circumferential direction when closed, while the shoulders 14 keep it from dropping into the interior of the cylinder when opened. In this way a very simple and inexpensive hingeless connection is provided, enabling the door to be entirely removed when clothes are put in or taken out. The bead 16 may be reinforced by a rod 17 The door is fastened shut by means of two fiat hooks or keepers 18 pivoted upon it by rivets 19, so as to swing approximately parallel with the door, into and out of engagement with oppositely projecting, raised lugs QOfiXed rigidly to the drum wall.

While the foregoing is the preferred construction, it will be understood that the invention is not necessarily limited to the precise details shown and that the suction pockets may be embodied in differing forms.

What is claimed as new is:

1. A rotary washing cylinder having a perforated wall and a baflie comprising a portionof the wall sheet doubled inward upon itself so as to form a two-thickness bafiie continuous with the wall at both sides, the ends of the baffle layers being cut to Copies of this patent may be obtained for five cents each, by addressing the Commission;

form tongues, and cylinder heads having slots through which said tongues are passed and bent over.

2. A rotary washing cylinder comprising a circumferential wall and heads and a baffle continuous with the circumferential wall and having its ends engaged with slots in the heads.

In witness whereof, I have hereunto set my hand this 12th day of December, 1916. FREDERICK W. SAUER. In the presence of EMIL N. BAAR, G. H. EMPREY.

ef Patents.

Washington, D. E. 

